This paper analyzed the major hazards and accident risks. The risk index and power coefficient were presented and referenced value and formula were defined.

分析了煤矿重大危险源与事故风险，提出了煤矿危险性概率指数和风险权系数，并给定了参考值和计算公式。

youdao

Severity evaluation and models of major explosion process accident have been put forward on the basis of study on many typical hazards evaluation models.

在研究分析了许多典型国内外事故危险性评价模型的基础上，总结并提出了重大工艺爆炸事故危险性分级、严重度评价方法及模型。

youdao

The European Union's Major Accident Hazards Bureau reckons that 28% of all reported major accidents involving a 'loss of containment' are due to ageing.

BBC: Statoil platforms